2031749903257 has 2 divisors, whose sum is σ = 2031749903258. Its totient is φ = 2031749903256.

The previous prime is 2031749903201. The next prime is 2031749903263. The reversal of 2031749903257 is 7523099471302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1523671765641 + 508078137616 = 1234371^2 + 712796^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031749903257 - 2⁷ = 2031749903129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2031749903957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015874951628 + 1015874951629.

It is an arithmetic number, because the mean of its divisors is an integer number (1015874951629).

Almost surely, 2^{2031749903257} is an apocalyptic number.

It is an amenable number.

2031749903257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031749903257 is an equidigital number, since it uses as much as digits as its factorization.

2031749903257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 2031749903257 in words is "two trillion, thirty-one billion, seven hundred forty-nine million, nine hundred three thousand, two hundred fifty-seven".